Chances are you'll want to unload that iPhone 6 or older device, and the good news is they can fetch a better value than any other smartphone on the market.

You have several options for trading in your old iPhone, selling it to a service that guarantees to buy it. Deal News did a price-by-price comparison of how much money you can potentially get for your old iPhone.

Rounding out the top five was Apple, either online or in-store. You can get a $225 as Apple gift card.

Nextworth online offers those who sell their iPhones $245 in cash or a Target gift card.

Another good option is Amazon online, where you can get $270 in credit for goods on their website.

Glyde, meantime, will give you $316 in cold, hard cash for old iPhone models.

Finally, you could always try selling it yourself on eBay. On average, sellers made $316 in cash based on Bidvoy data.

Of course, these prices can vary depending on the market so compare sites to get the most for your phone.

If you save the box, charger and accessories with the phone, you can get more money.